- -

pH effect on zinc recovery from the spent pickling baths of hot dip galvanizing industries

RiuNet: Institutional repository of the Polithecnic University of Valencia

Share/Send to

Cited by

Statistics

pH effect on zinc recovery from the spent pickling baths of hot dip galvanizing industries

Show simple item record

Files in this item

dc.contributor.author Carrillo Abad, Jorge es_ES
dc.contributor.author García Gabaldón, Montserrat es_ES
dc.contributor.author Pérez-Herranz, Valentín es_ES
dc.date.accessioned 2018-07-16T06:53:49Z
dc.date.available 2018-07-16T06:53:49Z
dc.date.issued 2017 es_ES
dc.identifier.issn 1383-5866 es_ES
dc.identifier.uri http://hdl.handle.net/10251/105841
dc.description.abstract [EN] In this work, the pH effect on the zinc electrowinning present in the spent pickling baths (SPBs) is analysed with the aim of decreasing the energetic cost of the process. Specifically, the effect of increasing the initial pH with and without its control during the whole electrolysis experiment is studied on synthetic solutions with concentration values similar to those present in the spent pickling baths. Finally, real SPBs are treated under pH control and the results obtained are also compared with those acquired with the direct electrolysis of these SPBs in a membrane reactor. The modification of the initial pH on synthetic solutions shows an increase in zinc deposition rate as the initial pH is risen. However, the zinc redissolution phenomenon is present during the whole experiment. On the other hand, when the pH is controlled, the results obtained are much better as zinc redissolution is prevented and the hydrogen evolution reaction rate is decreased. Comparing the behaviour between the reactor under pH control and that in the presence of an anion exchange membrane, reflects zinc conversion values slightly higher for the membrane reactor due to the zinc precipitation occurring in the reactor under pH control, which is higher as the pH rises. However, the specific energy consumption is considerably higher in the membrane reactor mainly due to the ohmic drop introduced by the membrane. (C) 2016 Elsevier B.V. All rights reserved. es_ES
dc.language Inglés es_ES
dc.publisher Elsevier es_ES
dc.relation.ispartof Separation and Purification Technology es_ES
dc.rights Reconocimiento - No comercial - Sin obra derivada (by-nc-nd) es_ES
dc.subject Deposition es_ES
dc.subject Iron es_ES
dc.subject pH control es_ES
dc.subject Precipitation es_ES
dc.subject Redissolution es_ES
dc.subject Spent-pickling baths es_ES
dc.subject Zinc recovery es_ES
dc.subject.classification INGENIERIA QUIMICA es_ES
dc.title pH effect on zinc recovery from the spent pickling baths of hot dip galvanizing industries es_ES
dc.type Artículo es_ES
dc.identifier.doi 10.1016/j.seppur.2016.12.034 es_ES
dc.rights.accessRights Abierto es_ES
dc.date.embargoEndDate 2019-04-28 es_ES
dc.contributor.affiliation Universitat Politècnica de València. Departamento de Ingeniería Química y Nuclear - Departament d'Enginyeria Química i Nuclear es_ES
dc.description.bibliographicCitation Carrillo Abad, J.; García Gabaldón, M.; Pérez-Herranz, V. (2017). pH effect on zinc recovery from the spent pickling baths of hot dip galvanizing industries. Separation and Purification Technology. 177:21-28. doi:10.1016/j.seppur.2016.12.034 es_ES
dc.description.accrualMethod S es_ES
dc.relation.publisherversion http://doi.org/10.1016/j.seppur.2016.12.034 es_ES
dc.description.upvformatpinicio 21 es_ES
dc.description.upvformatpfin 28 es_ES
dc.type.version info:eu-repo/semantics/publishedVersion es_ES
dc.description.volume 177 es_ES
dc.relation.pasarela S\326437 es_ES


This item appears in the following Collection(s)

Show simple item record